CZ109 (CW509L)


CZ109 (CW509L)

CZ109 (CW509L) is a lead-free form of alpha-beta brass containing approximately 60% copper, 40% zinc and a trace of iron. It is a general purpose alloy that offers excellent hot working properties for corrosion-resistant machine parts.

Also known as Muntz metal, the alloy is named after George Fredrick Muntz, who commercialised it following a patent of 1832. Notably, CZ109 (CW509L) was used on the hull of the Cutty Sark.

Related Specifications of CZ109 (CW509L)

  • C28000
  • CW509L
  • BS2874
  • 2.0360
  • NF A51-104
  • CuZn40

Nominal Composition of CZ109 (CW509L)

Cu 60%, Zn 40%

Mechanical Properties of CZ109 (CW509L)

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
340 25

Key Features of CZ109 (CW509L)

  • Excellent hot formability
  • High ductility

Applications of CZ109 (CW509L)

Offshore & marine | Condenser and heat exchanger tubeplates

Chemical processing | Condenser and heat exchanger tubeplates

Decorative & architectural | Extruded sections including angles, channels and trim, heavy gauge panels and trim; hot stamped components, forgings, “upset” products requiring limited cold bending and hot-headed fasteners

Columbia Metals – a leading supplier of CZ109 (CW509L)

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of CZ1019 (CW509L) and other high quality specialist engineering alloys.

To buy or learn more about CZ109 (CW509L) contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
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